Monogram Aerospace Fasteners
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With over 100 years of service to the fastener industry, Monogram Aerospace Fasteners has established itself as the recognized leader in blind bolt technology in the aerospace industry.  The only rotary-actuated fasteners in general aerospace use are the Visu-Lok® and Composi-Lok® fasteners; both of which were invented, patented, and trademarked by Monogram.  Headquartered in Los Angeles, California, Monogram serves the world’s markets through a network of dedicated sales professionals and authorized distributors.



Bringing problem solving products to market is nothing new at Monogram. Our Visu-Lok® fastener pioneered blind fastener technology and for over a quarter century has remained an integral part of aircraft assembly.

With the advent of composite aircraft structures came new fastener challenges. Again Monogram led the way with a blind fastener design that achieved consistent high preload without the risk of composite delamination. Today Composi-Lok® is approved on virtually all composite airframe programs throughout the world.

Unique in the industry is Monogram's Radial-Lok® blind bolt. Offering 360° radial expansion throughout the fastener grip, its design properties are unmatched by any other blind bolt.

The latest in Monogram’s succession of innovative offerings are the OSI-Bolt® and the Ti-OSI™, a direct replacement for solid shank pin and collar systems. Both reflect Monogram’s commitment to a lower total installed cost design philosophy.

Common to the Visu-Lok® II, Composi-Lok II and Radial-Lok® is Monograms ingenious Drive Nut Concept. This patented design significantly reduces tooling requirements while achieving additional cost savings through trouble- free installation.

Monogram remains committed to its leadership role in fastener development and is currently working on bringing other problem solving solutions to the industry.



Quality second-to-none has always been a philosophy embraced by the entire Monogram team. Our focus in Total Quality Management, utilization of Statistical Process Control techniques and the team-building fundamentals of our world class manufacturing combine to yield products of unrivaled quality.





A hallmark of Monogram’s success, technical support continues to be a key element of our customer focus. No matter what is required, from a simple part number cross reference to around the clock on-site product support, Monogram has the resources and dedication to solve your problem.



Click here to learn the history of Monogram Aerospace Fasteners.